1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Masja [62]
3 years ago
9

If you need to put tile on your kitchen floor, do you need to know the perimeter or the area of the kitchen?

Mathematics
2 answers:
Vlad [161]3 years ago
8 0

Answer:

area

Step-by-step explanation:

Butoxors [25]3 years ago
8 0

Answer:

area

Step-by-step explanation:

You might be interested in
Show your work<br> −126 = 14k
Yuliya22 [10]

Answer: k = -9

Step-by-step explanation:

-126 = 14k

-------  -------

 14     14

-126 divided by 14 = -9

k = -9

4 0
3 years ago
Let A, B, C and D be sets. Prove that A \ B and C \ D are disjoint if and only if A ∩ C ⊆ B ∪ D
ANEK [815]

Step-by-step explanation:

We have to prove both implications of the affirmation.

1) Let's assume that A \ B and C \ D are disjoint, we have to prove that A ∩ C ⊆ B ∪ D.

We'll prove it by reducing to absurd.

Let's suppose that A ∩ C ⊄ B ∪ D. That means that there is an element x that belongs to A ∩ C but not to B ∪ D.

As x belongs to A ∩ C, x ∈ A and x ∈ C.

As x doesn't belong to B ∪ D, x ∉ B and x ∉ D.

With this, we can say that x ∈ A \ B and x ∈ C \ D.

Therefore, x ∈ (A \ B) ∩ (C \ D), absurd!

It's absurd because we were assuming that A \ B and C \ D were disjoint, therefore their intersection must be empty.

The absurd came from assuming that A ∩ C ⊄ B ∪ D.

That proves that A ∩ C ⊆ B ∪ D.

2) Let's assume that A ∩ C ⊆ B ∪ D, we have to prove that A \ B and C \ D are disjoint (i.e.  A \ B ∩ C \ D is empty)

We'll prove it again by reducing to absurd.

Let's suppose that  A \ B ∩ C \ D is not empty. That means there is an element x that belongs to  A \ B ∩ C \ D. Therefore, x ∈ A \ B and x ∈ C \ D.

As x ∈ A \ B, x belongs to A but x doesn't belong to B.  

As x ∈ C \ D, x belongs to C but x doesn't belong to D.

With this, we can say that x ∈ A ∩ C and x ∉ B ∪ D.

So, there is an element that belongs to A ∩ C but not to B∪D, absurd!

It's absurd because we were assuming that A ∩ C ⊆ B ∪ D, therefore every element of A ∩ C must belong to B ∪ D.

The absurd came from assuming that A \ B ∩ C \ D is not empty.

That proves that A \ B ∩ C \ D is empty, i.e. A \ B and C \ D are disjoint.

7 0
3 years ago
If the numerator of a fraction is increased by 3, the fraction becomes 3/4. If the denominator is decreased by 7, the
Sauron [17]

7 over 1

Step-by-step explanation:

3 0
3 years ago
What is the relationship between the degree measure of the angle formed by the straight edges of a section of a circle graph as
Butoxors [25]

Answer:

  degree measure = 360° × percent of data

Step-by-step explanation:

The ratio of the degree measure of a sector of a circle graph to 360° is the same as the ratio of the represented data to the whole amount of data.

The idea of a circle graph is that the area of the sector is proportional to the data being represented. That is, if the data represented is 10% of the whole, then the sector area is 10% of the whole. Sector area is proportional to the degree measure of its central angle, so the example sector would have a central angle of 10% of 360°, or 36°.

The ratio of the central angle of the sector to 360° is the same as the percentage of data that sector represents.

7 0
3 years ago
Whats 1,743 rounded to the nerest ten
ra1l [238]
1,743 rounded to the nearest ten is 1,740.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Write parametric equations of the line 2x-y=3
    10·2 answers
  • What is the discriminant of the polynomial below
    14·1 answer
  • Explain why 6:4 and 18:4 are not equivalent ratios?
    15·1 answer
  • Charles scored 75% on a test and got six questions wrong. How many questions were on the test?
    6·2 answers
  • _________ are defined as lines that never have one point in common.
    15·1 answer
  • What one is not a right triangle
    14·1 answer
  • Suns the value of m, rounded to the nearest tenth
    13·1 answer
  • 3) A yoga class begins at 6:45 pm. The class lasts for 1 hours. Jo needs:
    5·1 answer
  • 24g+40f this confusing
    15·1 answer
  • Drag the operations into the order in which they should be performed to evaluate the expression below. 7 × 6 ÷ ( 13 − 10 ) + 4 a
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!